Here is the full list of all 40 ICARUS achievements.
Kill the Scorpion Boss on the Hardest Difficulty
Burn down a shelter
First time killed by a bear
First time your prospector dies
Revive a downed prospector
Kill another prospector
Activate the Thumper
Alter an item
Catch a fish with a bow and arrow
Kill the Alpha Wolf Boss on the Hardest Difficulty
Unlock all blueprints in T4
Unlock all blueprints in T3
Unlock all blueprints in T2
Unlock all blueprints in T1
Complete the tutorial
Equip a full set of armor
Reach the bottom of a talent tree
Reach the Level Cap
Pick up a stick, stone, or oxite
Kill the Sandworm Boss on the Hardest Difficulty
Kill the Landshark Boss on the Hardest Difficulty
Complete every Styx Mission
Complete every Olympus Mission
Collect 10000 Credits
Collect 10000 Exotics
Catch one of every fish
Unlock all the creatures in the Bestiary (Max Rank)
Get struck by lightning
Get struck by lighting… again
Kill a Deer with a grenade
Kill 250 Zebra
Break a crate with a grenade
Get 10,000 Melee Kills
Get 10,000 Bow & Arrow Kills
Get 10,000 Gun Kills
Get 1000 Stealth Critical hit kills
Harvest one of every plant
Mine every type of ore
Cook every item of Food
Explore every biome